Structural Validity of the Spanish Wechsler Intelligence Scale for Children--Fourth Edition in a Large Sample of Spanish Children with Attention-Deficit Hyperactivity Disorder

Autor/inn/en	Fenollar-Cortés, Javier; López-Pinar, Carlos; Watkins, Marley W.
Titel	Structural Validity of the Spanish Wechsler Intelligence Scale for Children--Fourth Edition in a Large Sample of Spanish Children with Attention-Deficit Hyperactivity Disorder
Quelle	In: International Journal of School & Educational Psychology, 7 (2019), S.2-14 (13 Seiten)Infoseite zur Zeitschrift PDF als Volltext Verfügbarkeit
Zusatzinformation	ORCID (Watkins, Marley W.)
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	2168-3603
DOI	10.1080/21683603.2018.1474820
Schlagwörter	Foreign Countries; Intelligence Tests; Attention Deficit Hyperactivity Disorder; Test Validity; Children; Adolescents; Scores; Factor Structure; Psychometrics; Individual Characteristics; Spain (Valencia); Wechsler Intelligence Scale for Children + Suchen Sie Ihr Suchwort? Ausland; Intelligence test; Intelligenztest; Testvalidität; Child; Kind; Kinder; Adolescent; Adolescence; Adoleszenz; Jugend; Jugendalter; Jugendlicher; Faktorenstruktur; Psychometry; Psychometrie; Personality characteristic; Personality traits; Persönlichkeitsmerkmal
Abstract	The factorial structure of the WISC-IV for 859 Spanish children diagnosed with ADHD was examined. A bifactor model with the four factors first identified by Wechsler (2003a) was the best fit to the data. The Coding and Symbol Search subtests were particularly poor measures of "g" but relatively strong measures of the Processing Speed factor. In contrast, the Block Design (BD) and Picture Concepts (PC) subtests were relatively strong measures of "g" but weak measures of the Perceptual Reasoning factor. In fact, 80% of the BD variance and 97.8% of the PC variance and was due to the general factor. Additionally, the Wechsler bifactor model was invariant across ADHD-Combined and ADHD-Inattentive groups, permitting a direct comparison of WISC-IV across children diagnosed with these subtypes of ADHD. Only the FSIQ exhibited robust estimates of reliability ([omega] = 0.85 and [omega][subscript h] = 0.70). In contrast, the group factor scores were unreliable measures of their proposed underlying factors ([omega][subscript hs] coefficients ranging from 0.14 to 0.50). It is unlikely that WISC-IV index score profiles can validly contribute to ADHD assessments. Consequently, clinicians must produce psychometric evidence to justify the interpretation of Wechsler score profiles for children with ADHD. (As Provided).
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Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2020/1/01